Classifications

• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
  • G03B17/00—Details of cameras or camera bodies; Accessories therefor
  • G03B17/24—Details of cameras or camera bodies; Accessories therefor with means for separately producing marks on the film, e.g. title, time of exposure
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
  • G03B2217/00—Details of cameras or camera bodies; Accessories therefor
  • G03B2217/24—Details of cameras or camera bodies; Accessories therefor with means for separately producing marks on the film
  • G03B2217/242—Details of the marking device
  • G03B2217/243—Optical devices

Definitions

• the present invention uses an S-light aperture, an exposure time, etc. ⁇ a photographing condition, photographing, data imprinting for imprinting data such as a date and a photographing time on a film mounted on the camera. More specifically, in the data projection optical system, data having a liquid crystal member capable of making only a liquid crystal portion corresponding to a desired data pattern transmit light can be transmitted.
• the transparent electrode portion to which the voltage is applied and the overlapping liquid crystal portion are formed.
• the transparent electrode portion to which the voltage is applied and the overlapping liquid crystal portion are formed.
• the liquid crystal member that forms a desired imprint data pattern in a light transmissible state the light from the light source that has passed through the liquid crystal part in the light transmissible state is imaged.
• the lens is configured to form an image on the film surface.
• the liquid crystal member is substantially shielded from light except for the liquid crystal portion overlapping with the transparent electrode portion to which the voltage is applied.
• the part (11) was sometimes exposed.
• the result is traditional.
• the data imprinting device of the present invention includes, in the data imprinting optical system, a light-shielding member having a light-transmitting portion having substantially the same shape as the pattern of the transparent electrode of the liquid crystal member.
• the light-shielding member completely shields the portion of the liquid crystal member other than the transparent electrode pattern, so that the portion adjacent to the data image on the film surface is the light source for data projection. It is not exposed to light and the data on the film surface
• the light shielding member is formed by a sheet member such as a printed film or a photographic film.
• the light transmitting member includes:
• the data recording optical system can irradiate the liquid crystal member.
• FIG. 1 shows the data imprinting optical system of one embodiment of the present invention.
• Fig. 3 is a diagram
• Fig. 2 is a perspective view showing the main part of the same example
• Fig. 3 A is data imprinting using a conventional device.
• FIG. 3 (b) is an explanatory diagram showing a data imprinting state by the device according to the present invention.
• the data imprinting light source (1) is related to the pressing operation of the shutter release button or the shutter release operation. Then, power is supplied from a power supply device (not shown). Lamps and light-emitting diodes are used as the light source.
• ⁇ (2) is an optical path conversion prism having a function of condensing light emitted from the light emitting light source (1).
• Data light generating means including a liquid crystal data plate (4). Light from the light source (1) is cut off extra light by the data light generating means to form a desired data pattern image. The data beam is emitted as a data beam to be formed. O The data beam is formed on the film surface (F) by an imaging lens (5) and a reflection mirror (6). O Connect the statue of
• a light shielding member (7) is arranged opposite to the liquid crystal data plate (4) .o On both front and back surfaces of the liquid crystal data plate (4). As is well known, a transparent electrode (8) is arranged, and an imprint pattern (9) is formed on these electrodes. Liquid
• the data plate (4) usually blocks light, but when voltage is applied Only the voltage application part is filled with liquid crystal that allows light transmission.o Therefore, when a selected voltage of the transparent electrode group (8) is applied, a specific desired data pattern, for example, a specific number Appears as a light-transmissible area in the shaded area.
• the light-transmitting part (7) can be seen from the front or back of the crystal data (4) or can be attached to both sides.), And the light-blocking member (7) as a whole Only the portion of the liquid crystal data plate corresponding to the pattern of the electrode (8) is formed as a transparent portion (10) so as to allow light to pass through.
• the light shielding member (7) is a transparent filter.
• ⁇ Force formed as the light-shielding part is printed on the film Same as this 3 ⁇ 4 Photo film or opaque plate stamped with the shape of the electrode pattern It may be a sheet-like member formed independently of the plate. O In addition, the surface of the liquid crystal data plate may be made of an opaque paint or a substance (eg.
• the data light generating means (3) having the above configuration transmits only light incident on a liquid crystal portion forming a desired data pattern which is made light transmissible by applying a voltage to the transparent electrode (8). Therefore, the extra light is blocked by the liquid crystal itself in the non-transparent state and the light shielding plate (7), so that the light from the light source (1) passes through the data light generating means (3). 9) is generated as data light having desired data information, and then guided on the film surface as described above to form a data image.
• the data imprinting device of this embodiment has the light shielding member (7) arranged so as to face the liquid crystal data plate, it is assumed that a portion adjacent to the periphery of the imprinting pattern (9) of the liquid crystal data plate is lighted. Even if passed Such light is completely blocked by the light-shielding plate (7). Therefore, only light that has passed through the desired data pattern is guided on the film surface.
• the data image (9) imprinted on the surface has a clear outline and is very legible as shown in Fig. 3 (b).

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Camera Data Copying Or Recording (AREA)
• Liquid Crystal (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=13285179

Family Applications (1)

Country Status (2)

Citations (5)

• 1980
  • 1980-05-12 JP JP6537680U patent/JPS56164234U/ja active Pending
• 1981
  • 1981-05-12 WO PCT/JP1981/000109 patent/WO1981003386A1/ja unknown

Patent Citations (5)

Also Published As

Similar Documents

Legal Events